Now it's unveiling a whole new portal that officially acknowledges what you already do anyway: spend all your time at work on Facebook. Called Facebook at Work, the service announced on Wednesday works pretty much just like regular Facebook, except you use it to connect to colleagues who may or may not be friends. Most important of all, the color scheme is different, which lets your boss looking over your shoulder know that, even though you're on Facebook, you're still "working."

For now, Facebook says it's making Facebook at Work available to a handful of partners, who will be testing the product ahead of its full-blown launch, tentatively slated for later this year. Facebook itself says it's been using Facebook at Work internally for years.

"We have found that using Facebook as a work tool makes our work day more efficient," Lars Rasmussen, Facebook's director of engineering, tells WIRED. "You can get more stuff done with Facebook than any other tool that we know of, and we'd like to make that available to the whole world."

"Efficiency" and "spending time on Facebook at work" may sound like a contradiction in terms.